Born at Garissus, Cappadocia (modern Turkey), in 423, he undertook a pilgrimage to Jerusalem, and after meeting with the famed St. Simeon Stylites, he entered a monastery. Later, he was named the head of a church between Jerusalem and Bethlehem, but departed to live as a hermit near the Dead Sea. As he attracted a large number of followers, Theodosius established a monastery.
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